diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index 63a8ade37f..5843b3a5e0 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -23,7 +23,7 @@ jobs:
         with:
           debug-only: ${{ github.ref != 'refs/heads/dev' }} # Dry-run when not run on dev branch
           remove-stale-when-updated: true
-          operations-per-run: 150
+          operations-per-run: 400
 
           # The 90 day stale policy for PRs
           # - PRs
diff --git a/ard_esp32_opentherm_tests_pr.md b/ard_esp32_opentherm_tests_pr.md
new file mode 100644
index 0000000000..b543109d56
--- /dev/null
+++ b/ard_esp32_opentherm_tests_pr.md
@@ -0,0 +1,86 @@
+# What does this implement/fix?
+
+Removes redundant ESP32 Arduino test files for the `opentherm` component and cleans up redundant preprocessor conditionals. The ESP-IDF tests provide complete coverage since the opentherm component has no framework-specific implementation differences for ESP32.
+
+Also fixes incorrect preprocessor conditionals - changes `#if defined(ESP32) || defined(USE_ESP_IDF)` to `#ifdef USE_ESP32`. The macro `ESP32` is only defined for the original ESP32 variant, while `USE_ESP32` covers all ESP32 variants (C3, S2, S3, etc.). The `|| defined(USE_ESP_IDF)` was unnecessary since ESP-IDF can only run on ESP32 platforms.
+
+## Background
+
+As part of the ongoing effort to reduce Arduino-specific test redundancy (esphome/backlog#66), this PR removes ESP32 Arduino tests that duplicate IDF test coverage.
+
+**Analysis of opentherm component:**
+- Previously used `#if defined(ESP32) || defined(USE_ESP_IDF)` to check for ESP32 **platform**
+- This was incorrect: `ESP32` is only defined for the original ESP32 variant, not C3/S2/S3
+- Changed to `#ifdef USE_ESP32` which covers all ESP32 variants
+- The `|| defined(USE_ESP_IDF)` part was unnecessary since ESP-IDF can only run on ESP32 platforms
+- ESP32 timer APIs (`timer_init`, `timer_set_counter_value`, `timer_isr_callback_add`) are ESP-IDF APIs
+- These timer APIs work identically in both Arduino and ESP-IDF frameworks since Arduino is now built on ESP-IDF
+- Only ESP8266 has framework-specific code (using Arduino's `timer1_*` functions)
+- ESP32 implementation is identical across frameworks
+
+## Changes
+
+### Code Cleanup
+
+**OpenTherm component:**
+- Fixed incorrect `#if defined(ESP32) || defined(USE_ESP_IDF)` to `#ifdef USE_ESP32` in:
+  - `esphome/components/opentherm/opentherm.h` (3 locations)
+  - `esphome/components/opentherm/opentherm.cpp` (4 locations)
+- `ESP32` is only defined for the original ESP32 variant, not C3/S2/S3
+- `USE_ESP32` correctly covers all ESP32 variants
+- The `|| defined(USE_ESP_IDF)` part was unnecessary since ESP-IDF can only be defined on ESP32 platforms
+
+### Test Files Removed
+
+- `tests/components/opentherm/test.esp32-ard.yaml`
+- `tests/components/opentherm/test.esp32-c3-ard.yaml`
+
+### Test Coverage Maintained
+
+ESP-IDF test files remain and cover both frameworks:
+- `tests/components/opentherm/test.esp32-idf.yaml`
+- `tests/components/opentherm/test.esp32-c3-idf.yaml`
+
+### Platform-Specific Tests Retained
+
+Arduino tests remain for ESP8266 (uses Arduino-specific `timer1_*` functions):
+- `tests/components/opentherm/test.esp8266-ard.yaml`
+
+## Benefits
+
+- **Reduces CI test time** - 2 fewer redundant test configurations
+- **Simplifies code** - Removes redundant preprocessor conditionals
+- **Maintains coverage** - IDF tests cover both frameworks for ESP32
+
+## Types of changes
+
+- [x] Code quality improvements to existing code or addition of tests
+
+**Related issue or feature (if applicable):**
+
+- Part of esphome/backlog#66 - Remove redundant ESP32 Arduino tests
+
+**Pull request in [esphome-docs](https://github.com/esphome/esphome-docs) with documentation (if applicable):**
+
+N/A - No user-facing changes
+
+## Test Environment
+
+- [x] ESP32
+- [x] ESP32 IDF
+- [ ] ESP8266
+- [ ] RP2040
+- [ ] BK72xx
+- [ ] RTL87xx
+- [ ] nRF52840
+
+## Example entry for `config.yaml`:
+
+N/A - No configuration changes
+
+## Checklist:
+  - [x] The code change is tested and works locally.
+  - [ ] Tests have been added to verify that the new code works (under `tests/` folder).
+
+If user exposed functionality or configuration variables are added/changed:
+  - [ ] Documentation added/updated in [esphome-docs](https://github.com/esphome/esphome-docs).
diff --git a/esphome/components/esp32/__init__.py b/esphome/components/esp32/__init__.py
index 3cbcdb99b4..d9b8d067a4 100644
--- a/esphome/components/esp32/__init__.py
+++ b/esphome/components/esp32/__init__.py
@@ -329,7 +329,8 @@ ARDUINO_FRAMEWORK_VERSION_LOOKUP = {
     "dev": cv.Version(3, 3, 1),
 }
 ARDUINO_PLATFORM_VERSION_LOOKUP = {
-    cv.Version(3, 3, 1): cv.Version(55, 3, 31),
+    cv.Version(3, 3, 2): cv.Version(55, 3, 31, "1"),
+    cv.Version(3, 3, 1): cv.Version(55, 3, 31, "1"),
     cv.Version(3, 3, 0): cv.Version(55, 3, 30, "2"),
     cv.Version(3, 2, 1): cv.Version(54, 3, 21, "2"),
     cv.Version(3, 2, 0): cv.Version(54, 3, 20),
@@ -347,8 +348,8 @@ ESP_IDF_FRAMEWORK_VERSION_LOOKUP = {
     "dev": cv.Version(5, 5, 1),
 }
 ESP_IDF_PLATFORM_VERSION_LOOKUP = {
-    cv.Version(5, 5, 1): cv.Version(55, 3, 31),
-    cv.Version(5, 5, 0): cv.Version(55, 3, 31),
+    cv.Version(5, 5, 1): cv.Version(55, 3, 31, "1"),
+    cv.Version(5, 5, 0): cv.Version(55, 3, 31, "1"),
     cv.Version(5, 4, 2): cv.Version(54, 3, 21, "2"),
     cv.Version(5, 4, 1): cv.Version(54, 3, 21, "2"),
     cv.Version(5, 4, 0): cv.Version(54, 3, 21, "2"),
@@ -363,8 +364,8 @@ ESP_IDF_PLATFORM_VERSION_LOOKUP = {
 #  - https://github.com/pioarduino/platform-espressif32/releases
 PLATFORM_VERSION_LOOKUP = {
     "recommended": cv.Version(54, 3, 21, "2"),
-    "latest": cv.Version(55, 3, 31),
-    "dev": "https://github.com/pioarduino/platform-espressif32.git#develop",
+    "latest": cv.Version(55, 3, 31, "1"),
+    "dev": cv.Version(55, 3, 31, "1"),
 }
 
 
@@ -656,6 +657,7 @@ def _show_framework_migration_message(name: str, variant: str) -> None:
         + "Why change? ESP-IDF offers:\n"
         + color(AnsiFore.GREEN, "  ✨ Up to 40% smaller binaries\n")
         + color(AnsiFore.GREEN, "  🚀 Better performance and optimization\n")
+        + color(AnsiFore.GREEN, "  ⚡ 2-3x faster compile times\n")
         + color(AnsiFore.GREEN, "  📦 Custom-built firmware for your exact needs\n")
         + color(
             AnsiFore.GREEN,
@@ -663,7 +665,6 @@ def _show_framework_migration_message(name: str, variant: str) -> None:
         )
         + "\n"
         + "Trade-offs:\n"
-        + color(AnsiFore.YELLOW, "  ⏱️  Compile times are ~25% longer\n")
         + color(AnsiFore.YELLOW, "  🔄 Some components need migration\n")
         + "\n"
         + "What should I do?\n"
diff --git a/tests/components/debug/test.esp32-c3-ard.yaml b/tests/components/debug/test.esp32-c3-ard.yaml
deleted file mode 100644
index 7d43491862..0000000000
--- a/tests/components/debug/test.esp32-c3-ard.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-<<: !include common.yaml
-
-esp32:
-  cpu_frequency: 80MHz
diff --git a/tests/components/debug/test.esp32-s2-ard.yaml b/tests/components/debug/test.esp32-s2-ard.yaml
deleted file mode 100644
index dade44d145..0000000000
--- a/tests/components/debug/test.esp32-s2-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common.yaml
diff --git a/tests/components/debug/test.esp32-s3-ard.yaml b/tests/components/debug/test.esp32-s3-ard.yaml
deleted file mode 100644
index dade44d145..0000000000
--- a/tests/components/debug/test.esp32-s3-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common.yaml
diff --git a/tests/components/logger/test-usb_cdc.esp32-c3-ard.yaml b/tests/components/logger/test-usb_cdc.esp32-c3-idf.yaml
similarity index 100%
rename from tests/components/logger/test-usb_cdc.esp32-c3-ard.yaml
rename to tests/components/logger/test-usb_cdc.esp32-c3-idf.yaml
diff --git a/tests/components/logger/test-usb_cdc.esp32-s3-ard.yaml b/tests/components/logger/test-usb_cdc.esp32-s3-ard.yaml
deleted file mode 100644
index cfdaec9771..0000000000
--- a/tests/components/logger/test-usb_cdc.esp32-s3-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common-usb_cdc.yaml
diff --git a/tests/components/logger/test-usb_cdc.esp32-s2-ard.yaml b/tests/components/logger/test-usb_cdc.esp32-s3-idf.yaml
similarity index 100%
rename from tests/components/logger/test-usb_cdc.esp32-s2-ard.yaml
rename to tests/components/logger/test-usb_cdc.esp32-s3-idf.yaml
diff --git a/tests/components/logger/test.esp32-ard.yaml b/tests/components/logger/test.esp32-ard.yaml
deleted file mode 100644
index 3fe04e18a3..0000000000
--- a/tests/components/logger/test.esp32-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common-default_uart.yaml
diff --git a/tests/components/logger/test.esp32-c3-ard.yaml b/tests/components/logger/test.esp32-c3-ard.yaml
deleted file mode 100644
index 3fe04e18a3..0000000000
--- a/tests/components/logger/test.esp32-c3-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common-default_uart.yaml
diff --git a/tests/components/mdns/test-enabled.esp32-ard.yaml b/tests/components/mdns/test-enabled.esp32-ard.yaml
deleted file mode 100644
index 97fd63d70e..0000000000
--- a/tests/components/mdns/test-enabled.esp32-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common-enabled.yaml
diff --git a/tests/components/mdns/test-enabled.esp32-c3-ard.yaml b/tests/components/mdns/test-enabled.esp32-c3-ard.yaml
deleted file mode 100644
index 97fd63d70e..0000000000
--- a/tests/components/mdns/test-enabled.esp32-c3-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common-enabled.yaml
diff --git a/tests/components/network/test-ipv6.esp32-ard.yaml b/tests/components/network/test-ipv6.esp32-ard.yaml
deleted file mode 100644
index da1324b17e..0000000000
--- a/tests/components/network/test-ipv6.esp32-ard.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-substitutions:
-  network_enable_ipv6: "true"
-
-<<: !include common.yaml
diff --git a/tests/components/network/test-ipv6.esp32-c3-ard.yaml b/tests/components/network/test-ipv6.esp32-c3-ard.yaml
deleted file mode 100644
index da1324b17e..0000000000
--- a/tests/components/network/test-ipv6.esp32-c3-ard.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-substitutions:
-  network_enable_ipv6: "true"
-
-<<: !include common.yaml
diff --git a/tests/components/network/test.esp32-ard.yaml b/tests/components/network/test.esp32-ard.yaml
deleted file mode 100644
index dade44d145..0000000000
--- a/tests/components/network/test.esp32-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common.yaml
diff --git a/tests/components/network/test.esp32-c3-ard.yaml b/tests/components/network/test.esp32-c3-ard.yaml
deleted file mode 100644
index dade44d145..0000000000
--- a/tests/components/network/test.esp32-c3-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common.yaml
diff --git a/tests/components/time/test.esp32-ard.yaml b/tests/components/time/test.esp32-ard.yaml
deleted file mode 100644
index dade44d145..0000000000
--- a/tests/components/time/test.esp32-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common.yaml
diff --git a/tests/components/time/test.esp32-c3-ard.yaml b/tests/components/time/test.esp32-c3-ard.yaml
deleted file mode 100644
index dade44d145..0000000000
--- a/tests/components/time/test.esp32-c3-ard.yaml
+++ /dev/null
@@ -1 +0,0 @@
-<<: !include common.yaml